Digitized control three-dimensional spinal orthopaedic device

ABSTRACT

This present invention relates to a digitized control three-dimensional spinal orthopaedic device for cure injured spinal. The device comprises a bed body, a head-chest plate and a breech-leg plate. The bed body has a frame configuration, and comprises a top bed body and a bottom bed body. The head-chest plate is fixed on the top bed body. A traction means of the head-chest plate and an angle means of the breech-leg plate are fixed into the top bed body. The breech-leg plate is supported by a swinging arm. A left-to-right angle means is located under the breech-leg plate. A connecting shaft of the angle means is connected to the up-to-down swinging arm by a cross rod, so the head-chest plate is integrated with the breech-leg plate. The present spinal orghopaedic device can enable the bed body to go up and down automatically, the head-chest plate can vibrate and be drawn at a high or low speed, and the breech-leg plate moves up to down, rotates left to right and vibrate. The device can correct the three-dimensional pathologic change of the spine by use of the digitized control, and can employ quantified treatment accurately in order to ensure security and relibility.

This application is a §371 application of PCT/CN01/00678, filed on 29Apr. 2001, which in turn claims priority to CN application 00235851.4filed 5 Jun. 2000. Each of the above identified applications isincorporated by reference herein.

FIELD OF THE INVENTION

This practical new product is a numerically-controlled 3D vertebrarectifier. It is a therapeutic apparatus used to cure lumbar vertebradisc protrusion, cervical spondylosis, and vertebra soft tissue injurydisease of breast/waist rear-joint dysfunction.

BACKGROUND OF THE INVENTION

Lumbar vertebra disc protrusion, cervical spondylosis, and vertebra softtissue injury disease of breast/waist rear-joint dysfunction arecommonly-seen and frequently-occurring diseases. They bring great painsto patients and the main cause of their pathologic changes is that thereare some three-dimensional changes between the patient's sick centrums.The commonly-used 3D vertebra traction bed is used to rectify thechanges of sick centrums at the three-dimensional direction, making itreturn to normal. The vertebra 3D bed for quick traction is implementedby using hydraulic driving unit. Because the hydraulic action of thehydraulic driving unit is slow and cannot precisely and quantitativelycure the patient, it is difficult for it to ensure the safety andreliability of treatment.

SUMMARY OF THE INVENTION

This new practical product is intended to provide anumerically-controlled vertebra rectifier. It can implement suchfunctions as automatic rising and lowering of bed body and such actionsas up-tilting, down-tilting, left/right rotating and dithering ofhip/leg plates. It can be used to correct the three-dimensional changesof sick centrums and implement three-axle two-link numeric control. Itcan precisely and quantitatively cure the patient and can ensure thesafety and reliability of the treatment.

The goal of this new practical product is implemented through anumerically-controlled 3D vertebra rectifier including bed body,head/breast plate, and hip/leg plates. it has the following features:the said bed body is of the frame structure and divided into upper andlower bed bodies, in which there is equipped with an automaticrising/lowering mechanism; the said head/breast plate is installed onthe upper bed body; in the upper bed body is mounted with the tractionmechanism of head/breast plate and the angled mechanism of hip/legplate; the hip/leg plate is supported with rotary supporting arm. Thelower part of the hip/leg plate has the left-/right-rotating mechanism.The connecting bar of the angled mechanism is connected to theup-/down-tilting rotating arm of the hip/leg plate through a transverseaxle so that the head/breast plate and the hip/leg plate form anintegral unit.

BRIEF DESCRIPTION OF THE FIGURES

FIG. 1 is the schematic diagram of the structure of this new practicalproduct:

FIG. 2 is the I—I sectional view of FIG. 1.

FIG. 3 is the II—II sectional view of FIG. 1.

FIG. 4 is the schematic diagram of numerical control.

DETAILED DESCRIPTION OF THE INVENTION

This new practical product is a numerically-controlled vertebrarectifier and it includes the bed body, head/breast plate (3), andhip/leg plate (4). The bed body is of a frame structure and it isdivided into the upper bed boy (1) and the lower bed body (2). Insidethe bed body, there is equipped with an automatic rising/loweringmechanism. The head/breast plate (3) is on the upper bed body (1).Inside the upper bed body (1), there is installed with the tractionmechanism of the head/breast plate (3) and the angled mechanism of thehip/leg plate (4).

The hip/leg plate (4) is supported by the rotary supporting arm (20). Inthe lower part of the hip/leg plate (4), there is equipped with theleft-/right-rotating mechanism. The connecting bar (23) of the angledmechanism is connected to the up-/down-tilting supporting arm (20) ofthe hip/leg plate (4) through transverse axle (21), which makes thehead/breast (3) and the hip/leg plate (4) being an integrity.

The automatic rising/lowering mechanism installed inside the bed body iscomposed of guide sleeve (5), guide pole (7), threaded sleeve (7),trapezoidal rising/lowering lead screw (8), motor (9) and accessory wormgear case (10). Among these parts, the guide sleeve (5) fixed at thefour corners of upper base plate of upper bed body (1) is connected tothe four guide poles (6) fixed at the four corners of lower base plateof the lower bed body (2), and the threaded sleeve (7) fixed in themiddle of the lower base plate of the upper bed body (1) is connected tothe trapezoidal rising/lowering lead screw (8) fixed on the lower baseplate of the lower bed body (2). On the base plate of the upper bed body(1), there is installed with motor (9), accessory worm gear box (10) andtrapezoidal rising/lowering lead screw (8). When the upper bed body (1)needs to rise/lower along Axis Z upon the requirements of therapy, itcan control the rotation of motor (9) with the aid of the set computerprogram and then drive the trapezoidal lead screw (8) to rotate via theaccessory worm gear box (10). Thus, while it makes the threaded sleeve(7) of the upper bed body (1) rising or lowering along the trapezoidallead screw (8), it can more upward or downward along the four guidepoles (6). As a result, the automatic rising/lowering of the bed body(1) can be implemented within the range from 750 mm to 1200 mm.

The head/breast plate (3) can use the traction mechanism installed inthe upper bed body (1) to implement the quick or slow traction ordithering along X-axis. The traction mechanism is composed of two guidesleeves (11), two longitudinal guide poles (131, connecting body (14),and lead screw nut (15), servodriving system. In this mechanism, thelower part of the head/breast plate (3) sliding-fits with twolongitudinal guide poles (13) on the frame supporting seat (12) of theupper bed body (1) along the two guide sleeves (11) fixed on two sidesof X-axis direction, the connecting unit (14) fixed in the middle partbelow head/breast plate (3) is connected to the lead screw nut (15), andthe lead screw nut (15) fits with the ball screw (18) in theservodriving system. The servo-driving system is composed of servo motor(16) installed in the upper bed body (1), gear box (17) and ball screwsuite (18). Then it works, upon the requirements of the patient, set upthe treatment traction distance and input it into the computer and thecomputer can control the rotation of the driving servo motor (16)following the set program and through FAGOR8055GP numerically-controlledsystem and servo driving system and drive the ball screw suite (18) viagear box (17) to rotate, so as to make the connecting unit (14) to moreforward and backward and implement the quick or slow reciprocatingmotion of the head/breast plate (3) within the range from 0 to 70 mm.Its traction force can be up to 4800N. If in the program theshort-distance and high-frequency reciprocating motion is set, thedithering function is activated. The actual data of quick and slowtraction and dithering of the head/breast plate is feedback by the coderin the servo motor (16) to the computer for computation and correction,so as to complete the closed circuit control cycle. At the same time,this procedure will be displayed and recorded in the computer.

The hip/leg plate (4) can sway around the uptilting/down-tilting anglesof Axis Y with the aid of the angled mechanism installed in the upperbed body. This angled mechanism is composed of servo motor (24)installed in the upper bed body, gear box (25), universal coupling (26),rotating lead screw suite (27) and connecting bar (23). Along the X-axisdirection of the plan under the hip/leg plate (4), there are two armsupports (39), which enable it to connect to the supporting arm (20)that can sway at the up-tilting/downtilting angles. The left part ofsupporting arm (20) is connected to transverse axle (21) on the framesupport (22) of the upper bed body (1). The left end of the supportingarm (20) is connected to the connecting bar (23) of the angledmechanism. When it is used, upon the requirements of the patient theup-tilting or down-tilting angle that the hip/leg plate needs fortreatment should be set up and input into the computer. The computershall control the rotation of the driving servo motor (24) according tothe settings in the program and through the FAGOR8055GPnumerically-controlled system and the servo driving system, then withthe aid of the gear box (25), it will drive the lead screw suite (27) todrive the connecting bar (23) to rotate, so as to make the supportingarm (20) sway along Y axis of supporting arm transverse axle (21) at anup-tilting angle of 15 or a downtilting angle of 25 and then locate. Theactual angle will be feedback to the computer via the coder in the servomotor (24) for computation and correction, so as to finish the closedcontrol cycle. In this process, such data will be displayed on andrecorded in the computer.

The hip/leg plate (4) can rotate left and right around X axis anddither. This is implemented by the left and right rotating mechanism setup under the hip/leg plate (4). The rotating mechanism is composed ofthe rotating servo motor (30) installed under the supporting arm (2),gear box (31), rotating worm gear suite (32), small gear (29) andsemi-circle big gear (28) engaging with the small gear (29). Thesemi-circle big gear (28) is fixed on the axle wire under the plan ofthe hip/leg plate. When it is in operation, the left/right rotatingangle should be set up for the hip/leg plate upon the requirements ofthe patient and then input into the computer. The computer will,according to the set program and through the FAGOR8055GPnumerically-controlled system and the servo driving system, control therotation of the driving servo motor (30), then the gear box (31) willhelp to drive the rotating worm gear suite (32) and then the small gear(29), so as to make the big gear (28) to drive the hip/leg plate toquickly rotate at any angle between left and right 25 degrees along theX axis of the axle line. The torque here can be up to 1500N. if a smallangle and quick rotation is set in the set program, the hip/leg platewill dither around X axis. The left/right rotation of the hip/leg plate(4) and the traction action of the head/breast plate (3) can synchronizefor linkage. Its actual rotary angle can be feedback to the computer viathe coder in the servo motor (30) for computation and modification, soas to finish the closed control cycle. This process will be displayedand recorded in the computer.

EXAMPLE

This new practical 3D numerically-controlled vertebra rectifier canimplement the following actions: automatic rising/lowering of bed bodyalong Z axis, quick or slow traction and dithering of the head/breastplate along X axis, swaying of the hip/leg plate along Y axis at anup-tilting/down-tilting angle, and left/right rotation and dithering ofthe hip/leg plate along X axis, so as to correct the three-dimensionalchange between sick centrums. The vertebra rectifier uses theindustrially-controlled computer and FAGOR8055GP numerically-controlledsystem as the controllers and uses the three-axle and two-linkage FAGORdigitalized servo driving system as the actuator to implement thethree-dimensional action via the servo motor, so it can strictly controlvarious action quantity, precisely quantitative treatment and ensure thesafety and reliability of the treatment.

Its treatment features are as follows:

-   -   1. Quick distance traction, which will not produce time effect        that may hurt the body of a patient so that the patient will        feel no pain.    -   2. Rotation at a fixed direction and fixed angle. Its shear        force and torque force not only can correct the rotary shift        between sick centrums but also can relax the connection of local        tissues.    -   3. Continuous and alternate dual-way conjugated rotation, which        obviously improve the one-off treatment success rate.    -   4. It can locate the correct centrums for treatment so as to        concentrate the force where the sick centrums are and therefore        improve the treatment effect.    -   5. All motion parameters of this equipment have passed the        strict biomechanics experiment on human body, which has proved        that they are safe and reliable. It not only meets the        physiological requirement of human body but also inherits and        leverages the advantages of traditional Chinese massage        techniques and represents the modern therapy techniques of        cervical and lumbar vertebra spondylosis.

1. A numerically-controlled (NC) 3D vertebra rectifier comprising a bedbody, a head and breast plate, and a hip and leg plate; wherein, saidbed body is of a frame structure and is divided into an upper bed bodyand a lower bed body; said bed body is installed with an automaticrising and lowering mechanism; said head and breast plate and said hipand leg plate are arranged along a longitudinal axis; said head andbreast plate is installed on said upper bed body; a traction mechanismof said head and breast plate and an angled mechanism of said hip andleg plate is installed in said upper bed body; said hip and leg plate issupported by a rotary supporting arm which is positioned along thelongitudinal axis; the lower part of said hip and leg plate is set upwith a rotation mechanism about the longitudinal axis; and a connectingbar on said angled mechanism is connected to said rotary supporting armof said hip and leg plate via a transverse axle, which makes said headand breast plate and said hip and leg plate as an integrity, wherein,said automatic rising and lowering mechanism installed in said bed bodycomprises four guide sleeves, four guide poles, a threaded sleeve, atrapezoidal rising and lowering lead screw, a motor, and a worm gear boxsuite; said four guide sleeves fixed at the four corners of an upperbase plate under said upper bed body is connected to said four guidepoles fixed at the four corners of a lower base plate under said lowerbed body; said thread sleeve fixed in the middle of said upper baseplate of said upper bed body is connected to said trapezoidal rising andlowering lead screw fixed on said lower base plate of said lower bedbody; said motor, said worm gear box suite, and said trapezoidal risingand lowering lead screw are installed on said lower base plate of saidlower bed body and said motor drives said trapezoidal rising andlowering lead screw via said worm gear box suite.
 2. Anumerically-controlled (NC) 3D vertebra rectifier comprising a bed body,a head and breast plate, and a hip and leg plate; wherein, said bed bodyis of a frame structure and is divided into an upper bed body and alower bed body; said bed body is installed with an automatic rising andlowering mechanism; said head and breast plate and said hip and leaplate are arranged along a longitudinal axis; said head and breast plateis installed an said upper bed body; a traction mechanism of said headand breast plate and an angled mechanism of said hip and leg plate isinstalled in said upper bed body; said hip and leg plate is supported bya rotary supporting arm which is positioned along the longitudinal axis;the lower part of said hip and leg plate is set up with a rotationmechanism about the longitudinal axis; and a connecting bar on saidangled mechanism is connected to said rotary supporting arm of said hipand leg plate via a transverse axle, which makes said head and breastplate and said hip and leg plate as an integrity, wherein, said tractionmechanism of said head and breast plate comprises two guide slidingsleeves, two longitudinal guide poles, a connecting unit, a lead screwnut, and a servo driving system; said two guide sliding sleeves fixed onboth sides along the longitudinal axis under said head and breast platehas a sliding fit with said two longitudinal guide poles on a framesupport of said upper bed body; said connecting unit fixed in the middlepart below said head and breast plate is connected to said lead screwnut; and said lead screw nut fits with a ball lead screw in said servodriving system.
 3. The NC 3D vertebra rectifier according to claim 2,wherein, said servo driving system comprises a servo motor, gear box,and a ball lead screw suite installed in the upper bed body.
 4. Anumerically-controlled (NC) 3D vertebra rectifier comprising a bed body,a head and breast plate, and a hip and leg plate; wherein, said bed bodyis of a frame structure and is divided into an upper bed body and alower bed body; said bed body is installed with an automatic rising andlowering mechanism; said head and breast plate and said hip and legplate are arranged along longitudinal axis; said head and breast plateis installed on said upper bed body: a traction mechanism of said headand breast plate and an angled mechanism of said hip and leg plate isinstalled in said upper bed body; said hip and leg plate is supported bya rotary supporting arm which is positioned along the longitudinal axis;the lower part of said hip and leg plate is set up with a rotationmechanism about the longitudinal axis; and a connecting bar on saidangled mechanism is connected to said rotary supporting arm of said hipand leg plate via a transverse axle, which makes said head and breastplate and said hip and leg plate as an integrity, wherein, two armsupports are set up along the longitudinal axis on each end of a lowersurface of said hip and leg plate, said two arm supports are connectedto said rotary supporting arm, which can sway at an up-tilting anddown-tilting angle along the longitudinal axis, via two axle pins; thepart of said rotary supporting arm which is closer to said head andbreast plate is connected to said transverse axle on a frame support ofsaid upper bed body; and the end of said rotary supporting arm which iscloser to said head and breast plate is connected to said connecting barof said angled mechanism.
 5. The NC 3D vertebra rectifier according toclaim 4, wherein, said angled mechanism comprises a servo motor, a gearbox, an universal coupling, a swaying lead screw suite, and a connectingbar, which are installed in said upper bed body.
 6. Anumerically-controlled (NC) 3D vertebra rectifier comprising a bed body,a head and breast plate, and a hip and leg plate; wherein, said bed bodyis of a frame structure and is divided into an upper bed body and alower bed body; said bed body is installed with an automatic rising andlowering mechanism; said head and breast plate and said hip and legplate are arranged along a longitudinal axis; said head and breast plateis installed on said upper bed body; a traction mechanism of said headand breast plate and an angled mechanism of said hip and leg plate isinstalled in said upper bed body; said hip and leg plate is supported bya rotary supporting arm which is positioned along the longitudinal axis;the lower part of said hip and leg plate is set up with a rotationmechanism about the longitudinal axis; and a connecting bar on saidangled mechanism is connected to said rotary supporting arm of said hipand leg plate via a transverse axle, which makes said head and breastplate and said hip and leg plate as an integrity, wherein, said left andright rotation mechanism set up under the said hip and leg platecomprises an angled servo motor installed on said rotary supporting arm,a gear box, an angled warm gear suite, a small gear, and a semi-circlebig gear joggled with said small gear; and said semi-circle big gear isfixed on an axle wire below the plan of said hip and leg plate.